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IRS2108

HALF-BRIDGE DRIVER

International Rectifier 

IRS2108/IRS21084(S)PbF

Absolute Maximum Ratings

Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage param-

eters are absolute voltages referenced to COM. The thermal resistance and power dissipation ratings are measured

under board mounted and still air conditions.

Symbol

Definition

Min.

Max. Units

VB

VS

VHO

VCC

VLO

DT

VIN

VSS

dVS/dt

PD

RthJA

TJ

TS

TL

High-side floating absolute voltage

High-side floating supply offset voltage

High-side floating output voltage

Low-side and logic fixed supply voltage

Low-side output voltage

Programmable deadtime pin voltage (IRS21084 only)

Logic input voltage (HIN & LIN )

Logic ground (IRS21084 only )

Allowable offset supply voltage transient

(8 lead PDIP)

Package power dissipation @ TA ≤ +25 oC (8 lead SOIC)

(14 lead PDIP)

(14 lead SOIC)

(8 lead PDIP)

Thermal resistance, junction to ambient

(8 lead SOIC)

(14 lead PDIP)

(14 lead SOIC)

Junction temperature

Storage temperature

Lead temperature (soldering, 10 seconds)

-0.3

VB - 25

VS - 0.3

-0.3

-0.3

V SS - 0.3

VSS - 0.3

VCC - 25

—

—

—

—

—

—

—

—

—

—

-50

—

625

VB + 0.3

VB + 0.3

25

VCC + 0.3

VCC + 0.3

VCC + 0.3

VCC + 0.3

50

1.0

0.625

1.6

1.0

125

200

75

120

150

150

300

V

V/ns

W

°C/W

°C

Recommended Operating Conditions

The input/output logic timing diagram is shown in Fig. 1. For proper operation the device should be used within the

recommended conditions. The VS and VSS offset rating are tested with all supplies biased at a 15 V differential.

Symbol

Definition

Min.

Max. Units

VB

High-side floating supply absolute voltage

VS + 10

VS + 20

VS

High-side floating supply offset voltage

Note 1

600

VHO

High-side floating output voltage

VS

VB

VCC

Low-side and logic fixed supply voltage

10

20

VLO

Low-side output voltage

VIN

Logic input voltage

0

VCC

V

IRS2108

COM

VCC

IRS21084

VSS

VCC

DT

Programmable deadtime pin voltage (IRS21084 only)

VS

VCC

VSS

Logic ground (IRS21084 only )

-5

5

TA

Ambient temperature

-40

125

°C

Note 1: Logic operational for VS of -5 V to +600 V. Logic state held for VS of -5 V to -VBS. (Please refer to the Design Tip

DT97-3 for more details).

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